The MBUS back-up sight is a low-cost, folding back-up sight. The dual aperture MBUS Rear Sight is adjustable for windage and fits all 20mm rail equipped weapons, but is specifically tailored to the M4/M16 AEG series.

Spring-loaded flip up sight Easily activated from either side or by pressing the top For M4/M16 AEG with standard 20mm Rail Durable DuPont Polymer construction

Weight: 0.09 kg

Size: 6.5 x 3 x 1.8 cm